Home
top_valve_group
Please click on product below for further information and to place an order.

Back Pressure

Top Valve Back Pressure Valve

Pressure Relief

Top Valve Pressure Relief Valve

Parts

Top Valve Parts

Accessories

Top Valve Accessories

Optional Equipment

Optional Equipment

Top Valve

Top Valve liquid back pressure valves and pressure relief valves.

A line of diaphragm style back pressure and pressure relief valves has been introduced by Primary Fluid Systems Inc., called Top Valve. 

Features include a completely adjustable pressure range of 0-150 PSIG and a built-in air release to reduce priming difficulties with metering pumps.

Top Valve back pressure valves and pressure relief valves are available in seven sizes, 1/4" through 2" NPT and eight (8) materials of wetted construction. The seat design of this new line of valves greatly extends the normal life expectancy of the diaphragm.

Standard Features of Top Valve Back Pressure Valves and Pressure Relief Valves

  • Teflon laminated to EPDM backer diaphragm
  • Turn down handle limits pressure to 150 psig
  • Color coded handles indicate size at a glance
  • Rectangular shape with mounting ports  
  • Spring design provides consistent pressure adjustments through the range (0-150 PSIG)
  • Long life diaphragm
  • Built-in optional gauge port

Materials of Construction Available:

  • PVC (Polyvinylchloride) 
  • CPVC (Chlorinated Polyvinyl Chloride)
  • PVDF (Kynar)
  • PP (Polypropylene)
  • Teflon (25% Glass Filled Teflon) 
  • S/S (Stainless Steel)
  • ALL20 (Alloy 20)
  • HASTC (Hastelloy C)

Downloads

  • How To Order Top Valve 
  • Top Valve Literature 
  • Top Valve Instruction Manual
  • Pressure & Pressure Relief Valve Exploded Parts View 
  • Back Pressure & Pressure Relief Valve - High Temperature - Exploded Parts View 
  • Back Pressure & Pressure Relief Valve - High Pressure - Exploded Parts View